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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 10 |
| 2 | 90 |
| 3 | 810 |
| 4 | 7290 |
| 5 | 65610 |
| 6 | 590490 |
| 7 | 5314410 |
| 8 | 47829690 |
| 9 | 430467210 |
| 10 | 3874204890 |
| 11 | 34867844010 |
| 12 | 313810596090 |
| 13 | 2824295364810 |
| 14 | 25418658283290 |
| 15 | 228767924549610 |
| 16 | 2058911320946490 |
| 17 | 18530201888518410 |
| 18 | 166771816996665690 |
[1,10,90,810,7290,65610,590490,5314410,47829690, 430467210,3874204890,34867844010,313810596090, 2824295364810,25418658283290,228767924549610, 2058911320946490,18530201888518410, 166771816996665690] |